Boating on the Tuolomne can be divided into two seasons: Spring spill season and Summer powerhouse release season. The spring, high flow season can have very high flows that are suitable for only the most-skilled paddlers. Commercial rafting trips rarely begin above 8,000 cfs. 6,000 cfs is considered an above normal flow, and 3,000-4,000 cfs is considered a very good flow. Once spills from Hetch Hetchy & Lake Eleanor cease, flows are around 1,500 cfs or less. During non spill, flows are a combination of powerhouse outflow from Holm Powerhouse on Cherry Creek, and a minimum release into the Tuolumne River from Early Intake diversion.
The flow from Holm Powerhouse takes a few hours to reach Meral's Pool.
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Tuolumne river release bulletins for 2007
Tuolumne river release Calendar for 2007
Inflows to New Don Pedro Reservoir will be mostly the flow from the river, although there are some low elevation creeks that can have a large effect during the winter. Inflow is reported as a 24 hour average after midnight.
| Name | Range | Difficulty | Updated | Level | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tuolumne River Below Confluence with Cherry Creek | ||||||||||||
| virtual-10553 | 600 - 10000 cfs | IV | 01h03m | 308 cfs (rc= -0.0 ) | ||||||||
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| When | River/Gauge | Subject | Level | Reporter |
|---|---|---|---|---|
| Tuolumne4) Lumsden Campground (Merals Pool) to Wards Ferry Bridge |
Tuolumne, 1300 cfs
|
1300 cfs | Paul Martzen | |
| Tuolumne4) Lumsden Campground (Merals Pool) to Wards Ferry Bridge [CA] |
clavey run out
|
n/a | steven vaniman | |
| Tuolumne [CA] |
Rafting Gray's Grindstone on the Tuolumne
|
n/a | Zachary Collier | |
| Tuolumne [CA] |
LOOP ON THE T!!- CODY
|
low | Cody Howard | |
| 4y203d10h44m | @Tuolumne 4) Lumsden Campground (Merals Pool) to Wards Ferry Bridge [CA] |
Brent Davis Photos of Tuolumne
|
n/a | Paul Martzen |
| 4y292d12h44m | Tuolumne [CA] |
Step 4
|
900 cfs | Daniel Lundberg |
| > 10 years | Tuolumne [CA] |
Boat-Crunching Clavey Hole
|
1250 cfs | Matthew Urdan |
| > 10 years | Tuolumne [CA] |
Horizon Line......indeed!
|
900 cfs | Daniel Lundberg |